#printf project ##Description This team project is part of the first year curriculum of ALX. _printf replicates the C standard library printf() function.
What you should learn from this project:
- How to use git in a team setting
- Applying variadic functions to a big project
- The complexities of printf
- Managing a lot of files and finding a good workflow
int _printf(const char *format, ...);
- Prints a string to the standard output, according to a given format
- All files were created and compiled on Ubuntu 14.04.4 LTS using GCC 4.8.4 with the command
gcc -Wall -Werror -Wextra -pedantic *.c
- Returns the number of characters in the output string on success, -1 otherwise
- Call it this way:
_printf("format string", arguments...)
whereformat string
can contain conversion specifiers and flags, along with regular characters
_printf("Hello, main\n")
prints "Hello, Main", followed by a new line_printf("%s", "Hello")
prints "Hello"_printf("This is a number: %d", 98)
prints "This is a number: 98"
These are all the tasks of this project, the ones that are completed link to the corresponding files.
0. I'm not going anywhere. You can print that wherever you want to. I'm here and I'm a Spur for life
- Write a function that produces output according to format.
- c : converts input into a character
- s : converts input into a string
- Handle the following conversion specifiers:
- d : converts input into a base 10 integer
- i : converts input into an integer
- Create a man page for your function
- Handle the following conversion specifiers:
- b : the unsigned int argument is converted to binary
- Handle the following conversion specifiers:
- u : converts the input into an unsigned integer
- o : converts the input into an octal number
- x : converts the input into a hexadecimal number
- X : converts the input into a hexadecimal number with capital letters
- Use a local buffer of 1024 chars in order to call write as little as possible.
- Handle the following custom conversion specifier:
- S : prints the string
- Non printable characters (0 < ASCII value < 32 or >= 127) are printed this way: \x, followed by the ASCII code value in hexadecimal (upper case - always 2 characters)
7. How is the world ruled and led to war? Diplomats lie to journalists and believe these lies when they see them in print
- Handle the following conversion specifier:
- p : int input is converted to a pointer address
- Handle the following flag characters for non-custom conversion specifiers:
- + : adds a + in front of signed positive numbers and a - in front of signed negative numbers
- space : same as +, but adds a space (is overwritten by +)
- # : adds a 0 in front of octal conversions that don't begin with one, and a 0x or 0X for x or X conversions
- Handle the following length modifiers for non-custom conversion specifiers:
- l : converts d, i, u, o, x, X conversions in short signed or unsigned ints
- h : converts d, i, u, o, x, X conversions in long signed or unsigned ints
- Handle the field width for non-custom conversion specifiers.
- Handle the precision for non-custom conversion specifiers.
- Handle the 0 flag character for non-custom conversion specifiers.
[13. Every time that I wanted to give up, if I saw an interesting textile, print what ever, suddenly I would see a collection]
- Handle the - flag character for non-custom conversion specifiers.
- Handle the following custom conversion specifier:
- r : prints the reversed string
- Handle the following custom conversion specifier:
- R : prints the rot13'ed string
- All the above options work well together.